xpad
Defined in xtensor/xpad.hpp
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enum class xt::pad_mode
Defines different algorithms to be used in
xt::pad
:constant
: Pads with a constant value.symmetric
: Pads with the reflection of the vector mirrored along the edge of the array.reflect
: Pads with the reflection of the vector mirrored on the first and last values of the vector along each axis.wrap
: Pads with the wrap of the vector along the axis. The first values are used to pad the end and the end values are used to pad the beginning.periodic
:== wrap
(pads with periodic repetitions of the vector).
OpenCV to xtensor:
BORDER_CONSTANT == constant
BORDER_REFLECT == symmetric
BORDER_REFLECT_101 == reflect
BORDER_WRAP == wrap
Values:
-
enumerator constant
-
enumerator symmetric
-
enumerator reflect
-
enumerator wrap
-
enumerator periodic
-
enumerator edge
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template<class E, class S = typename std::decay_t<E>::size_type, class V = typename std::decay_t<E>::value_type>
inline auto xt::pad(E &&e, const std::vector<std::vector<S>> &pad_width, pad_mode mode = pad_mode::constant, V constant_value = 0) Pad an array.
- Parameters:
e – The array.
pad_width – Number of values padded to the edges of each axis:
{{before_1, after_1}, ..., {before_N, after_N}}
.mode – The type of algorithm to use. [default:
xt::pad_mode::constant
].constant_value – The value to set the padded values for each axis (used in
xt::pad_mode::constant
).
- Returns:
The padded array.
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template<class E, class S = typename std::decay_t<E>::size_type, class V = typename std::decay_t<E>::value_type>
inline auto xt::pad(E &&e, const std::vector<S> &pad_width, pad_mode mode = pad_mode::constant, V constant_value = 0) Pad an array.
- Parameters:
e – The array.
pad_width – Number of values padded to the edges of each axis:
{before, after}
.mode – The type of algorithm to use. [default:
xt::pad_mode::constant
].constant_value – The value to set the padded values for each axis (used in
xt::pad_mode::constant
).
- Returns:
The padded array.
-
template<class E, class S = typename std::decay_t<E>::size_type, class V = typename std::decay_t<E>::value_type>
inline auto xt::pad(E &&e, S pad_width, pad_mode mode = pad_mode::constant, V constant_value = 0) Pad an array.
- Parameters:
e – The array.
pad_width – Number of values padded to the edges of each axis.
mode – The type of algorithm to use. [default:
xt::pad_mode::constant
].constant_value – The value to set the padded values for each axis (used in
xt::pad_mode::constant
).
- Returns:
The padded array.